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Cavernous Sinus Thrombosis

KEY FACTS Terminology Cavernous sinus (CS) thrombosis/thrombophlebitis (CST) CST: Blood clot in CS ± infection/thrombophlebitis You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Jugular Foramen Meningioma

KEY FACTS Terminology Benign neoplasm arising from arachnoid cap cells found along cranial nerves within jugular foramen (JF) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Jugular Bulb Diverticulum

KEY FACTS Terminology Definition: Congenital vascular anomaly of jugular bulb (JB) with focal finger-like projection extending from JB into surrounding skull base You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Dehiscent Jugular Bulb

KEY FACTS Terminology Dehiscent jugular bulb (DJB): Normal venous variant with superior & lateral extension of jugular bulb (JB) into middle ear (ME) cavity through dehiscent sigmoid plate You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

High Jugular Bulb

KEY FACTS Terminology High jugular bulb (JB): Superior aspect of JB extends above floor of IAC with no middle ear connection If dehiscence into middle ear present, use "dehiscent JB" not "high JB" to describe You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Jugular Bulb Pseudolesion

KEY FACTS Terminology Asymmetric, large jugular bulb flow phenomenon simulates neoplasm or thrombosis on MR sequences You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Sphenoid Benign Fatty Lesion

KEY FACTS Terminology Synonym: Arrested pneumatization of sphenoid Definition: Well-corticated, fat-containing lesion of sphenoid bone Occurs in regions where primary or accessory pneumatization known to occur Usually adjacent to posterior sinus wall You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Persistent Craniopharyngeal Canal

KEY FACTS Terminology Synonyms: Transsphenoidal canal, craniopharyngeal duct, hypophyseal canal, basipharyngeal canal Persistent craniopharyngeal canal: Developmental anomaly with persistent tract from nasopharynx to pituitary fossa Believed to be persistent adenohypophyseal stalk You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Ecchordosis Physaliphora

KEY FACTS Terminology Definition: Benign cystic mass arising dorsal to clivus with intradural component in prepontine cistern Considered to be ectopic notochordal remnant You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Skull Base Overview

Imaging Approaches and Indications CT is primary imaging tool for evaluating bony details of the skull base (SB). Multislice CT scanners allow thin slices (≤ 1 mm) & provide multiplanar reformatted images. These function as a mainstay for evaluating bony changes associated with SB diseases and providing evidence for calcific/bony matrices of these lesions. MR is an essential partner to bone CT in evaluating SB lesions…